Shoe-machine guide.



E. LAPOINTE.

SHOE MACHINE GUIDE.

APPLICATION FILED APR. 23, 1908v 928,988. Patented July 27. 1909.

2 SHEETS-SHEET 1.

WITNESSES:

E. LAPOINTB.

SHOE MACHINE GUIDE.

APPLICATION FILED APR.23, 1908. 92 Patented July 27,1909.

2 SHEETS-SHBET 2.

WITNESSES IN VEN TOR.

Z WWM- W 25 MM. em. BY 7/" A TTORNE Y.

'manufacturing shoes and. particularly to UNITED STATES PATENT orricn IEDGARD LAPOINTE, OF LAWRENCE, MASSACHUSETTS.

SHOE-MACHINE GUIDE Specification of Letters Patent.

Patented July 27, 1909.

Application filed April 2a, 1908. Serial No. 428,802.

what are known as fair stitch sewing machines for sewing the welt to thesole. 7

At present the welt,-which consists of a narrow strip of leather; eitherof uniform thickness or beveled as shown, is, by one operation uponanother machine, tacked by wire brads, or otherwise temporarily fas-.tened on top of and along the edge of the "obviate the necessity of"the first operation.

sole. After being so tacked, it is passed along guides and between theawl and needle of the fair stitch machine which firmly sews the welt tothe sole.

The particular object of my device is to By dispensing with-the tackingoperation,

cutting or shaving the leather.

; My device consists of certain guides and.

the expense thereof is avoided, and moreover, as I thus do away with thewire brads, the later operations in which the welt is cut or shaved downat the toe and ends are much more readily performed. The brads as-usedin the old machines interfere. with and turn the edges of the knivesusedfor.

attachments whereby the sole and welt are fed separately to thefairstitch machine so as to come together at apoint directly between theneedle and awl or a little in advance thereof. As the welt and sole,held in position by the guides, pass theneedle,

they are sewed together.

Usually in such machines, a channel is out horizontally along theoutside of thebottom .of the sole'to a depth beyond whereLthe stitchingis to be. The flap formed at the r bottom bythis channel is held backduring the sewing. After the sewing and after the shoe is substantiallyfinished, the flap is pressed back into place and there glued so thatthe stitches are entirely concealed.

In the drawings, Figure 1 is a cross section from the front through thesole edge guide and welt edge guide. Fig. 2 is a top view. Fig. 3 is aview from the front with most of the welt directing guide removed forgreater clearness. Fig.4 is a detail view from the back. Fig. 5 is aview as from the left of Figs. l and 2. Fig. 6 is an enlarged sectionsimilar to Fig, 1 but with a different adjustment of parts.

In these machines, there is what is known as a foot step or presser footshown at A in Figs. 4, 5, and 6 which, through proper mechanism, ispressed firmly down uponthe welt and sole while the awl and needle arefoot. thus compresses the leather and holds lifted automatically tocomplete the stitch and 'to allow the stock to be fed along. The presserfoot is again depressed to allowthe next stitch to begin and so on.

To allow of the ready insertion of the stock under the presser foot inthefirst place and to permit its ready removal at the finish, thepresser foot is connected to a treadle operated by the foot of theoperator. By pressing this treadle', the presser foot is raised out ofthe way.

My device is supported by a work plate B, along the bottom of which is adove tailed projection 1'0 so shaped as to slip into correspondinggrooves in the jaws of the work supporting) post N. It is held in thejaws of this post y the usual screw or bolt 22 by which the Jaws arebrought together. This plate B has an opening 11 through which the soleedge guide E passes. 7 It projects upward at one end to'form the solesupport and channel guide M.. Aslot 12'thr0ugh which the needle and awl23 of the sewing machine operate, extends through channel guide'M. Atthe front, see Fi 3, of channel guide M, the metal is broug t to a ointl3 and is beveled at 14 to present'a s anting, guiding surface which isextended into the depending fin 15 of channel guide M.

The sole C rests upon channel guide M over slot 12, and before the sewinis started, the point 13 of the channel gui e M is inserted in thechannel of thesole C. As the sole is pushed along during the sewing,channel flap. is forced down and-back by the held out of the way of theneedle.

The main late D rests on top ofwork plate Band 1s adjustably attachedthereto by means of a screw which passes through a the stock in placeduring the driving and is channel guide M and its fin 15, so as to bepointdesired b sole edge guide E the distance of thesewing from the edgeof thesole may be thus regulated as the needle does not move-therewitn.

At the left, main plate D is formed with a bossed projection forming thesole edge guide supportl33, which is suitably cut away at the bottom toreceive sole edge guide E. The pin 34 is screwed upward into sole edgeguide support 33- and the sole edge guide E, which is substantially asolid roller which is preferably beveled 01f at the bottom to avoid theout 01f, is loosely mounted thereon. Sole edge guide E can thus move upor down on SO18 edge guide pin 34. A

To maintain sole edge guide E normally in the raised position, I providethe riser arm E, which is forked at 40-to pass around pin 34 and to restunder sole edge guide E.

.ltiser arm F has a slot 41 through which passes the threaded shank 42of pivot arm 43-. By means of nut 44 and slot 41, the pivotal point ofriser arm F may be adjusted in .a well known manner. Pivot arm 43 issupported pivotally by a standard 45 screwed into. the bottom of baseplate B. I

' prefer to have a check nut 49 on the shank of standard 45.

To keep sole edge guide E normally raised, I pass through a suitablepassage in the outer end of riser arm F, a headed bolt 46. This bolt 46also passes through an opening in main plate 1) and is adj ustably heldin place by a set screw 36. Nuts 47 on bolt 46 serve as adjustablebearings for a spiral spring 48 around bolt 46 interposed between themand the end of riser arm F.

It will be seen that if sole edge guide E is the edge of the sole. Asthe leather is somewhat compressed by the presser foot, the sole edgeguide E may be slightly depressed but it is kept up in operativeposition by the springof riser arm F.

To hold the welt G in place upon sole C, I provide a welt edge guide H.This welt edge guide is so curved as to guide the welt' from the outletof welt directing guide K past the awl and the needle. It alsopreferably has a curved guiding-lip 50 which serves to guide the edge ofthe welt downward upon the sole after it leaves guide K. However thislip may be dispensed with as shown The top of this welt edge guide H iscut away at 51 to clear the presser foot A; Welt edge guide H rests ontop of sole edge guide E. Presser foot A is cut away at 70 to clear thetop of welt edge guide H and sole edge guide E but it may, incompressing the leather of the welt and sole during the sewing, depressboth guides H and E more or less. Riser arm F immediately brings themback when the pressure is removed. Ifthe welt overlaps the \sole andrests on top of sole edge guide E, the pressure of presser foot A willbe transmitted by the leather to guide E and will depress it.

\Velt edge guide H is pivoted at 52 to an arm 53 which rests in a groove54 in main plate D. Welt edge guide arm 53 is provided with slots 55through which screws 56 pass into main plate D by which it can beadjusted back and forth. The lateral adjustment of this guide determinesthe distance of the sewing from the edge of the welt.

The welt directing guide K is carried by a leg 60 provided with slots 61through which pass screws 62into main plate D. it can thus beadjusted'back and forth. The bottom guide plate 63 of guide K ischanneled at 64 to receive the welt and the top plate 65 is slotted at66 and adjustably fastened to the bottom plate by a screw 67. Top plate65 is also channeled to receive the welt and has a shoulder 68 whichrests inside of channel 64. The Well: G is passed through channel 64 andis made to closely fit therein by the adjustment of shoulder 63. Itspoint of delivery to welt edge guide H is determined by adjusting screws62.

tightening screw 30. As I in Fig. 6, as the presser foot holds the dweltI moves with main plate I), down and in' place.

The distance of the sewing from the edge of the sole is determined byadjusting screw 30 and the distance of the sewing from the edge' of thewelt and the welts relation to the sole are determined by adjustingscrews 56. The adjustments of riser arm F are made to correspond,- ifnecessary, by nuts 44 and set screw 36. The vertical adjustment for thethickness of the sole and welt is made'by bolt 46 and set screw andautomatically by the presser foot A and riser arm 1* reciprocally actingupon welt edge guide H and sole edge guide E.

The advantages which I claim for my con: struction are that the variousguides can be accurately adjusted for difierent width and thickness-ofsoles and welts and can be adjusted 'fordifi'erent relations of theparts. n

The location of the sewing can also be ad- I- justed and the welt guidescan be so adjusted that the welt will overlap the sole, as shown in Fig.6, or vice versa. guides are adjusted before beginning the sewing, the.0 eration of'th'e resser foot-and riser arm an the relation 0 the partsmake After the assess the vertical adjustment for the thickness of thesole and welt automatically and instantaneously. In this waythe stockcan be freely put in-place and positively held and guided during theoperation of sewing.

In operating my device, the edge of the solo at, the point where thesewing is to begin, is rested upon channel guide M and against sole edgeguide E; The welt is now pushed through welt directing guide K andpressed sidewise by the thumb of the operator against welt edge guide H.When welt and sole are in their place, the'presser foot A is released bythe operator and welt and sole are firmly held in place thereby as theyare sewed in the usual manner.

The welt may be thicker than the welt edge guide a'sshown'in Fig. l, orit may be thinner, as shown in Fig. 6, but preferably it is of the samethickness. The welt may be beveled or it may be of even thickness.

By unscrewing screws 62, 62, welt directing guide K may be entirelyremoved, and

the guides E and H will be still useful for some classes of work. Byraising guide E to its highest point by means of riser arm F, guideI-lwill be lifted out of the way and will be idle,'thereby allowing soleedge guide 7 E to be used as in the old style machines as an edge guideforthe sole with the welt tacked thereto. Its elastic action caused byriser arm F will allow it to adjust itself to any thickness of stockwithin limits.

What I claim as my invention and desire to cover by Letters Patent is1'. In a shoe sewing machine, a vertically adjustable sole. edge guideand a laterally adjustable welt edge guide coiiperating therewith,combined with a welt directing guide, and elastic means for keeping thesole edge guide and the welt edge guide normally raised.

2. In a shoe sewing machine, a work plate, a sole edge guide which isvertically movable and laterally adjustable with reference thereto andelastic means for keeping said guide normally raisled to a preadjustedpoint, combined with a) presser' foot which cooperates therewith.- j

3. In a shoe sewing machine, a vertically movable sole edge guide, and acooperating vertically movable welt edge guide, which is laterallyadjustable with reference to the sole edge guide, combined with elasticmeans for keeping said guides normally raised.-

4. In a shoe sewing machine, a vertically I movable sole edgeguide, anda coiicperating vertically movable welt edge *gui com bined with elasticmeans for keeping said guides normally raised and a presser foot cutaway at the'bottom so 'as to clear' said guides.v Y p 5. In a shoesewing machine, a work plate, 1 a vertically movable sole edge'guidewhich is and a cooperating vertically movable independently laterallyadjustable weltedge guide which rests thereon, combined with elasticmeans for keeping said guides nor- I mally raised.

6. In a shoe sewing machine, a vertically movable, laterally adjustablesole edge guide,

and a coiiperating vertically movable, inde-.

pendently laterally adjustable welt edge guide which rests thereon,combined with elastic means for keeping said guides normally raised, anda presser foot cut away at the bottom so as to clear'said guides.

- '7. In a shoe sewing machine, avertically movable, laterallyadjustable s'ole edge guide, and a coiiperatingvertically movable,laterally adjustable welt edge uide which rests thereon, combined with eastic means for keeping said guides normally raised, and an adjustablewelt directing guide as described.

8. A guide for shoe sewing machines comprising a work plate, anadjustable main plate, a sole edge guide carried thereby, and

a'welt edge guide-'pivotally and adjustably carried by the main plate,combined with an adjustable welt directing guide carried by the mainplate, and a spring actuated riser arm which bears upward on the soleedge uide. g 9. In a shoe sewing machine, a work plate provided with aneedle slot and a channel guide, a main plate adjustably attachedthereto and provided with a sole edge guide support, a' pm dependingfrom said support,

a roller loosely carried thereby form-ing a sole edge guide, a curvedwelt edge guide pivotally and adjustably attached to the main plate andprovided with an upper over-hanging lip and normally resting upon thesole edge guide, combined with a 'welt directing guide adjustablyattached to the.

main plate and provided with an adjustable opening, and a riser armforked at one end to straddle said pin and bear against the sole edgeguide and adjustably pivoted to a standard which depends from the workplate, and a spring between the main plate and the free end of saidriser arm.

10. In a shoe sewing machine, a work plate provided with a needleslot, amain plate mounted thereon, a pin depending there: from, and a rollerloosely mounted on said pin, combined with a T156! arm which is forkedto encircle said and to restunder said roller, a pivot for said armattached to the main plate, a bolt passing through the free end of saidarm and through an open- 35 laterally adjustable with, reference theretol sole edge guide, and a cooperating vertically n i I 928,988

movable welt edge guide which is laterally keeping said guides normallyraised to a preadjustable with reference to the sole edge adjustedpoint, means for-so adjusting the guide and rests thereon, combined withe'laselastic means, and a presser foot cut away tic means for keepingsaid guides normally at the bottom so as to clear said guides.

5 raised to a preadjusted point. In testimony whereof I affix mysignature 15 12. In a shoe sewing machine, a vertically in'presence oftwo Witnesses. 1 movable, laterally adjustable sole edge guide, EDGAR-DLAPOINTE. and a cooperating vertically movable, later- Witnesses: allyadjustable welt edge ide which rests JOSEPH MoNE'r'rE,

i0 thereon, combined with e astic means, for LEON BAZIN.

